Out of Bounds Read Vulnerability in MediaTek WLAN AP Driver
CVE-2025-20691

5.5MEDIUM

Key Information:

Vendor

MediaTek
Status
Mt6890, Mt7615, Mt7622, Mt7663, Mt7915, Mt7916, Mt7981, Mt7986
Vendor
CVE Published:
8 July 2025

What is CVE-2025-20691?

An issue has been identified in the MediaTek WLAN AP Driver where improper bounds checking can lead to an out of bounds read. This vulnerability allows local information disclosure when exploited by users with execution privileges. Exploitation does not require user interaction, posing a potential risk for sensitive information exposure. The situation is addressed in the patch ID: WCNCR00418039.

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Deploy the Patch

Affected Version(s)

MT6890, MT7615, MT7622, MT7663, MT7915, MT7916, MT7981, MT7986 SDK release 7.6.7.2 and before / openWRT 19.07, 21.02

References

https://corp.mediatek.com/product-security-bulletin/July-...

CVSS V3.1

Score:
5.5
Severity:
MEDIUM
Confidentiality:
High
Integrity:
None
Availability:
High
Attack Vector:
Local
Attack Complexity:
Low
Privileges Required:
Low
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

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